Clear-Com 4000 series II, Technical Manual

Page: 112 / 134

Technical Manual Issue 2.1 4000 Digital Series
II
Page 88 STA0381
4.8 PDE4663B - Central Processor RCU Card
Figure 81 - PDE4663B RCU Card
The PDE4663B RCU card is functionally identical to the PDE4663 RCU card other than it now includes
the dongle that was previously fitted externally.
The PDE4663B RCU provides connections to the RS232 (two 9-way socket D-type connector) ports
available on the Microprocessor cards (PDE4662). Only one RCU is required per matrix rack.
It provides three RJ45 Ethernet twisted pair connections. The main Ethernet network is normally
connected to Ethernet socket 2. If a second Ethernet connection is in use this is normally connected to
Ethernet socket 3.
Ethernet socket 1 is not used in normal operation.
Two BNC "sync" connectors provided are for synchronising different matrices together for future digital
trunk connections.
Two 37-way D-type connectors provide 12 GPI input and output connections.